Electric abc lamp fob locomotive head lights



(No Model.) 4 Sheets-Sheet 1.

G. G PYLE.

ELECTRIC ARC LAMP FOR LOOOMOTIVE HEAD LIGHTS. No. 346,561. Patented Aug.3, 1886.

Z I JNVIa/YTOR 4 Sheets-Sheet 2.

(No Model.)

G. 0. PYLE.

ELECTRIC ARC LAMP FOR LOOOMOTIVE HEAD LIGHTS. No. 346,561.

Patented Aug. 3, 1886.

WI TNESSES LN VENTOR ZZ5- W wmvz NY PETERS. Phowmhe m hm. WMhingQmL D.t;

(No Model.) 4 SheetsShe'et 3.

G. 0. PYLE.

ELECTRIC ARC LAMP FOR LOGOMOTIVE HEAD LIGHTS. No. 3461561. 7 PatentedAug. 3, 1886.

TZZTW Q S QVM L/V' V EJV' TOR .44., Attorney:

N. PETERS, Prwwumn m hu, Washmglcn. u. c.

(No Model.) 4 Sheets-Sheet 4.

G. O. PYLE.

ELEOTRIG ARC LAMP FOR LOOOMOTIVE HEAD LIGHTS. No. 346,561. v PatentedAug. 3, 1886.

TVITJVESSES g m Q. p W f $44514 Attorney Nv PETERS. Photc-Lilhcgmpher.Washinzlfifl. D. C.

'NITED STATES PATENT Orriciet GEORGE O. PYLE, OF DAYTON, OHIO, ASSIGNORTO THE AMERICAN ELEC- TRIO HEAD LIGHT COMPANY,

OF INDIANAPOLIS, INDIANA.

ELECTRIC-ARC LAMP FOR LOCOMOTiVE HEAD-HGHTS.

EPECIFICATION forming part of Letters Patent No. 346,561, dated Angus:3, 1886.

Application filed May 20, 1884.

(No model.)

To (LZZ whom it may concern.-

Be it known that I, GEoRo-E O. PYLE, of Dayton, in the county ofMontgomery and State of Ohio, have invented certain new and usefulImprovements in Electric-Arc Lamps for Locomotive Head-Lights; and I dohereby declare the following to be a full, clear, and exact descriptionof the same, reference being had to the accompanying drawings, forming apart of this specification, and to the ligures and letters of referencemarked thereon.

Electric-arc lamps as ordinarily constructed are not adapted towithstand the jarring motion of a locomotive, nor to preserve and :5maintain the proper feed of the carbons and focal position of the arewithin the reflector.

My present invention is designed to overcome these and other defects andto provide a simple and efficient form of arc lamp adapted to furnish apractically uniform and steady light, such as will meet all therequirements of a locomotive head-light; and my invention consists,primarily, in the manner of mounting and adjusting the standard carryingthe lamp 2 5 proper within the head-light and at the proper focalposition within the reflector, also in the means and mechanism forcontrolling the feed of the carbons and the formation of the proper are,all as hereinafter more fully described,and

3o pointed out in the claims.

In the accompanying drawings, Figure 1 is a side view of a head-lightreflector and stand, showing the manner of applying and attaching theelectric lamp. Fig. 2 is a top view of the same. Fig. 2 is a side viewshowing oillamp in reflector. Fig. 3 is aside view of the lamp and itsattachments. Fig. 4- a top view of the same. Figs. 5, 6, and 7 aredetail views of the mechanism for controlling the feed of the carbonsand the formation of the arc. Figs. 8 and 9 illustrate two forms ofbearings suitable for supporting the end of the operating-shaft.

Similar letters of reference in the several 4 5 figures indicate thesame parts.

For the purpose of illustrating the principle of my invention and onemode of carrying the same into practical operation, I have shown it asapplied to a head-light of ordinary and well-known construction, itbeing my purpose to adapt an electric-arc lamp for use in the place ofand as a substitute for the usual oil lamp heretofore employed, withoutin any material respect changing the structure of the head-light, at thesame time rendering it possible to readily substitute one are lamp foranother, or to replace the oil-lamp should it be desirable to do so.

In the drawings, 13 represents the reflector mounted upon the slidingboard C, the outer 6 casing of the headlight being removed. Asusuallyconstructed, the oil-lamp is carried by or supported upon this slidingboard C, so that the reflector and lamp can be readily withdrawn from orreplaced within the casing and 6 the lamp adjusted or removed. Upon thebase 0 are formed or attached guideways c c, for the reception of thebase-plate a, carrying the vertical standard I), which supports theoperating mechanism of the lamp. The plate a is adjustablelongitudinally in the ways 0 by means of the screw a,passing through theyoke a, and provided with the thumb-nuts a. The yoke a is held to theboard 0 by pieces a, or screws, if desired, passing through holes in the7 5 yoke, whereby the yoke can be readily removed and the lamp slid outand another electric lamp substituted, or the oillamp attached to asimilar supporting-rest placed in position. Attached to the vertical.standard Z) is a plate or frame, (I, diagonally disposed, as shown, andadjustable vertically upon the standard I) by the thumb'screw b. j

The plate (Z is provided with two guides or ways, 6 c, in which slidethe posts D D, ear- 8 rying the carbons D" D. The carbons are se-' curedin suitable holders attached to the arms or extensions projecting fromthe sliding posts D D, and are caused to approach or reeede from eachother to feed the carbons or form 0 the are by any suitable feedingmechanism acting upon or through said posts.

The feeding mechanism, which I have designed with especial reference tothis form of lamp, and which I prefer to employ in con- 5 nectiontherewith, is constructed substantially as follows: The back of theupper post, D, and the front of the lower post, D, are each furnishedwith a toothed section or rack, d, with which engage the teeth of thepinions (Z I00 (1", secured to the shaft d. The pinions (7. d are ofdifferent diameters, that controlling the bons may be raised or loweredindependently of the rotation of said shaft, and the holders and slidesare of such relative weight and proportion as, in connection with theshaft and pinions, to establish a practical balance. The shaft dcarrying the pinions, passes between the vertical posts D D, and has abearing at one end in the frame, as ate, and at the other in thearmature E of the electro-magnet E. By thus supporting theoperating-shaft on the armature of the electro-magnet the separation ofthe carbons to form and within certain limits maintain the arc iseffected by the direct application of the current, for as the armatureis raised by the attractive force of the electromagnet the shaft istilted, thus raising the upper-carbon holder. The carbon feedingmechanism is applied to or operates upon the shaft (Z and is madepreferably in the form hereinafter described. Upon a shaft, f, is se-'cured a ratchet-wheel, F, and pinion f, the latter engaging a largerpinion, J, on the 0perating-shaft (P. On the side of the ratchetwheel isformed a flange, f against which bears an extension, 0 of the armatureE, the two constituting a brake mechanism for the shaft (1 A bell-cranklever, F, is pivoted upon the shaft f, and carries atone extremity thepawl f ,engaging the teeth of the ratchetwheel F, and at the other thecontact plates or brushes 9 g. The armature or core of theelectro-magnet G is suitably attached to one side of the vertical arm ofthe lever F, and an adjustable spring, f isapplied to the other side,acting in opposition to the elect-ro-magnet. The brushes 9 g arefastened to an extension of the lever F, but insulated therefrom, asshown in Figs. 3 and 7, and are arranged to make contact with theplates'G" G G as the lever is moved from side to side. These plates areinsulated from each. other and from theirsupport. Themiddleplate,G,isconnected to the coils of the electro-magnet E. The plate G isconnected directly to the uppercarbon holder, and the plate G to thesame carbon holder through the coils of the electromagnet G. A pivotedlever, H, carries at one end the armature of the electro-magnet H, ofrelatively high resistance and located in a shunt around the lamp, andat the other a contact-spring, H for making the connection between theplates G and G. The resistance of the shunt-circuit is proportioned sothat the armature of the eleetro-magnet HWill not be raised until theresistance of the circuit through the carbons is abnormally increasedand the relative tension of the spring f and power of the electro-magnetG is such that the brushes will not be entirely withdrawn from contactwith the plate G so long as the resistance of the arc remains uniform orwithin certain limits, the main portion of the current being directedthrough the spring H and plate G.

The operation of the feeding mechanism as thus constructed and arrangedis substantially as follows: The carbons being brought into contact, thelever F held to one side by its spring, and the spring H in contact withthe plates G G,the main current, entering through the electro-magnet E,passes to the plate G, where it divides,part going through the spring Hplate G", and electro-magnet G to the up per carbon, and part throughthe brushes 9 g and plate G" to the same carbon. As soon as the circuitis established through the electromagnet E,the armature E will beraised,causing the shaft (2 to be tilted, raising the upper carbon, andthus forming the arc. As the armature E rises, the extension 0 (whichmay be provided with an elastic cushion, if desired) is brought againstthe fiangef and prevents the rotation of the shaftf so long as thearmature remains attracted. Vhen the arc elongates, owing to theconsumption of the carbons, and the resistance of the main circuit isabnormally increased, the armature of the electro-magnet E falls and theelectromagnet H becomes engaged sufficiently to withdraw the spring Hfrom contact with the plates G and G. \Vhen open, the direct circuitbetween the plates G and the carbon is broken and the current divertedthrough the electro-magnet G. The electro-magnet G being energizedsufficiently to overcome the spring f, the lever is attracted, and thepawl thereon engaging the ratchet-wheel causes a partial rotation of theshaft (Pin a direction to feed the carbons together. As the lever isattracted toward the electro-magnet G, the

, coniplished, the armature of the shunt-magnet is released, theconnection between the plates G and G reestablished, and the armature ofthe electro-magnet E again raised. In order to avoid-breaking the maincircuit entirely as the brushes move from one of the outer sectionsto'the other, I construct the said brushes or contact-makers in twoparts, one of which is longer than the other, and as the lever is movedfrom side to side contact is established between the two outer sections,G and G, before passing from either and onto the middle plate, G It willthus be seen that the plate G representing the terminal of the enteringcircuit, is at all times connected with one or both of the plates G Gand hence the circuit through the carbons is maintained during theentire excursion of the lever.

IIC

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. The sliding board of a locomotive-headlight, provided with ways, incombination with the vertical plate carrying the electric lamp, theadjustingscrcw, thumb-nuts, and removable yoke, substantially asdescribed, whereby the lamp can be readily applied or removed from thehead-light, as set forth.

2. In combination with the reflector for a locomotive head-light, anelectric lamp the working parts whereof are supported upon a singleplate diagonally disposed in rear and to one side of thereflector,substantial]y as described.

3. In combination with the reflector of a head-light,adiagonally-arranged support disposed in rear and to one side of thereflector. two slides carrying the carbons, and ashal't connected to thesaid slides and actuated by the operating mechanism, substantially asdescribed.

In combination with the reflector secured to the sliding board andlocated within the inclosing-case oi" head-light, a focusing electriclamp the operating parts whereof are all mounted upon avertically-adjustable plate supported on ahorizontally adjustable andremovable plate, substantially as described.

5. In a locomotive head-light, and in combination with the ways securedto the sliding board and the removable yoke, the adjustable platecarrying the lamp-operating mechanism, and provided with detachableadjusting de vices engaging said yoke to permit the removal of the yokeand the withdrawal of the lamp, substantially as described.

(3. In combination with the reflector, the diagonally-arrangcd plate,the slides mounted and sustained upon said plate, and provided ,withcarboncarriers projecting the one above and the other beneath thereflector, and rnechanism for controlling the movements of said slidesto feed the carbons and form the are, substantially as described.

'7. In. combination with the vertical plate provided with guides orways, the carbon-carriers working thcrein,and provided with teeth, asdescribed, and the rotating operating-shalt passing diagonally betweensaid slides and carrying the pinions for engagement therewith, as andfor the purpose set forth.

S. In combination with the movable carbons and their holders, a tiltingand rotating driving-shalt supported at one end by the armature of anelectro -magnet included in the lamp-circuit, substantially asdescribed.

9. In combination with the movable earbons and their holders, a rotatingshaft for controlling their movements and pivotally supported at oneend, and adaptethwhen tilted,to separate the carbons and form the arc,sub stantially as described.

10. In combination with the sliding carbonholders provided with teeth,the pinions en gaging therewith and mounted upon a tilting and rotatingshaft, substantially as described.

11. In an arc lamp, and in combination with the movable carbons thereof,a rotating tilting shalt carrying pinions for engagement with thecarbon-holders,suppoited at one end in a movable bearing whose positionis determined by he attractionof an electro-magnet in the lan'ipcircuit,substantially as described.

12. I In an arc lamp, andin combination with the driving-shaft therefor,the armature supporting one end ofthe said shaft and provided withabrake for engagement with a drum fastened to the counter-shaft, andintermediate gearing between the counter-shaft and driving-shal't,whereby the rotation of the countershaft is prevented when the armatureis raised, substantially as described.

18. In an arc lamp, the combination of the main driving-shalt supportedat one end in the armature of an clectroanagnet, the countershalt gearedto the main shalt and operated upon by thei'eed mechanism, and a clutchconnected to said armature, as and for the purpose set l'orth.

It. In combination with atilting main driving-shalt, a counter-shaftmounted in fixed bearings and geared to said main drivingshatt, andmechanism, such as indicated, l'or interniittingly rotating the saidcounter-shaft, and through it the main driving-shalt, and for thepurpose set forth.

15. The combination, in an arc lamp, oi a divided circuit, in one branchof which is located an electro-niagnetl'or effecting the feeding of thecarbons, and a switch operated upon by said electro-magnet toalternately divert the current through each branch, substantially asdescribed.

16. The combination, in an arclalnp, of a divided main circuit, inonebranch of which located an electro-magnet for controlling the feed ofthe carbons, a switch operated upon by said eleetro-magnet loralternately diverting the current through the two branches, and anelectromagnet of relatively high resistance located in a circuit aroundthe lamp and operating to shunt the main current through the branchcontaining the elcctro-magnet when the resistance of the arc isincreased, substantially as described.

17. In an electric lamp, and as means for regulating the feed of thecarbons, a divided main circuit, a fcedactuating electro-magnetlocatedin one of said branches, a cut-out1ocated in the other branch,and a switch actuated by the said clectro-magnet to alternately directthe main current through the two branches, substantially as described.

18. In an electric lamp, and as a means for regulating the feed of thecarbons, a divided main circuit, iced-actuating eleetro-magnet locatedin one of said branches and a cut-ont in the other, an. electromagnct ofrelatively high resistance located in a shunt circuit around the lampand controlling the said outout, and a switch mechanism controlled bythe first-mentioned electro-magnet, for alternately directing thecurrent through either branch when the cut-out is raised, substantiallyas described.

19. In an electric lamp, and in combination with the feed-actuatingmechanism and a divided main circuit, an eleotro-magnet located in oneof said branches and a cut-out in the other, an cleotro-magnet locatedin a shuntcircuit around the lamp and operating the cutout, and a switchoperated by the electro-magnet in the branch of the main circuit, totransfer the current from that branch to the other branch, substantiallyas described.

20. In combination with the movable car: hens and feeding mechanismtherefor, and as a means for actuating said feeding mechanism, thedivided circuit, the electro-magnet in one branch, the second branch ofrelatively low resistance containing a cut-out operated by anelectro-magnet in a shunt-circuit, a switch operated by theelectro-magnet in the branch circuit to disconnect the said branch anddivert the main current into the other branch Without interrupting thesame, and the feeding mechanism operated by the switch-lever,

substantially as described.

21. In an arc lamp, and in combination with the carbon-carrying devices,the pivoted shaft connected to the armature of an electro-magnet in themain circuit, the electro-magnet in one branch circuit and a secondbranch circuit of less resistance, a. cut-out located in the branch ofless resistance and operated upon by an electro-magnet in ashunt-circuit, a switch operated by the electro-magnet in the branchcircuit to disconnect the said branch and divert the current into theother branch without interrupting the main current, and a feedingmechanism operated upon by the switch-lever, substantially as described.

22. In combination with the feeding mechanism and with the leveroperating the same, the branch circuits, the electro-magnet located inone of said branches and operating on the lever, the contact-springscarried by said 1ever, the three contact-plates connected, respectively,with the branch circuits and the main line, whereby as the lever isattracted by the electromagnet the main current is gradually divertedfrom one branch to the other, substantially as described.

23. In an electric lamp, and in combination with the vibrating lever foractuating the feed mechanism, the three switch-plates insulated fromeach other, and connected, the two outer ones to the respective branchcircuits and the middle one to the main circuit, and the doublecontact-springs, arranged and operating substantially as described.

GEO. O. PYLE.

WVitnesses: D. L. WHITTIER, MIRABEAU N. LYNN.

